Understanding MongoDB Architecture: Databases, Collections, and Documents

MongoDB is designed around a flexible architecture that includes databases, collections, and documents. This post will explain these core components and how they fit together.

MongoDB Architecture Overview

Databases:

• Definition: A database in MongoDB is a container for collections and is analogous to a schema in SQL databases.
• Example: myDatabase can contain multiple collections like users, orders, etc.

Collections:

• Definition: Collections are groups of documents and are similar to tables in relational databases.
• Example: db.users is a collection that holds user documents.

Documents:

• Definition: Documents are the basic units of data in MongoDB, stored in BSON format.

{ "name": "Alice", "age": 25, "email": "alice@example.com" }

MongoDB architecture, MongoDB databases, MongoDB collections, MongoDB documents, BSON format, MongoDB schema.